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UmTEn STATES PATENT OFFICE.

WALTER HUNT, OF NEWV YORK, N. Y., ASSIGNOR TO .INO. NV. MARTIN AND GEO.G. MARTIN, OF BROOKLYN, NIMV YORK.

LAMP.

Specification of Letters Patent No. 32,402, dated May 21, 1861.

To all 'whom 'it may CO'ILCQWL! Be it known that I, VVALTER HUNT, of thecity, county, and State of New York, have invented certain new anduseful Improvements in Lamps for Burning Fluid, &c; and I hereby declarethat the following is a full and accurate description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, in which- Figures l and 2 are elevated cut sections ofthe filler and lamp, here shown, as in the process of filling the`latter, in which A is a tubular cut-off valve, inclosing a portion ofthe upper end of the filler vent-tube B, which is closed at its upperextremity, upon which rests the coiled spring, c, which is nowcompressed between it and the stop or cap of A, by the upward pressureof B, near the upper end of which are side vent-holes a, correspondingwith others in A, at Z). About one third of the lower portion of B isinclosecl by, and supported centrally in, the filling tube, C, by means`of the two perforated collars, E, a face view of which is seen in Fig.3. Upon the bottom end of B, is fixed a conical piston valve, (Z,somewhat less than the calber of C, but suitably large to close itscontracted end, which forms a valve-seat therefor, efl'ectually makingan internal tap-andfaucet for the filler, which tap is forced up when C,is pressed into the lanp-tube F, as here shown in the process offilling, and again closed when drawn out by the downward pressure of thespring, c. The upper end of the filler-tube, C, is fitted centrallyintothe top of the filling-can, Fig. 1, by a screw, or otherwise, at D,through which orifice the filler can be supplied in the ordinary manneror a tube, &c., as used in my lamps, as hereinafter described, may beinserted in the top of my filler, through which it may be supplied fromcans or casks of the retailers of fluid, &c., which cans are providedwith filling tubes similar to those in my filling cans as abovedescribed, in which case the escape or accidental ignition of the fluidfrom the cask, or filling-can, would be rendered impossible, either inthe hands of the seller, or user, as Scales would be substituted, formeasures, by the dealers burning fluid, &c.

The improvements in my plans of lamps may be attached to the comnonlamp, as shown in Figs. 2, 6 and 9, letter H. Fig. 6 gives a verticalcut section of the entire mechanism of the said lamp-top, as hereinclaimed, in which the cap, H and the tube, F, are cast in one piece. Iis a discous, conical valve fixed centrally upon the venttube, G, whichforms the vent-tube of the lamp, while in the process of being filled,having its bottom end closed, near by which, are side vent-holes, f.This end of Gr is inclosed in the thimble g, the bottom rim or flange ofwhich, forms a diaphragm or bottom of the tube, F, upon which bottomrests the coiled spring K, the upper end of which bears against theconical valve, I, which valve has its seat at J, Fig. 2, somewhat belowwhich the tube F, is pierce d with side openings k, through which thefluid from the filler flows into the lanp as indicated by the arrows iand 70. hen the lamp and filler are connected by the introduction andpressure of the tube C, into the recipient lamp-tube F, the vent tubes,B and G, are united by a conical male and female junction, indicated byZ, Figs. 2, 5, and 6, thus forming one entire `vent-tube from 2 to 1, asbefore described, while the tubes C, and F, being thus united constituteone continuous filling tube from l to 2, the valve I, being forced belowthe orifices 76, and the recipient vent-holes, f, below the thimble, g,allows the escape of the air up through Gr and B and out at a (as beforestated) the escape of 'which ceases as soon as the fluid in the lamprises to the vent-holes, f, in the lower end of G, above which the lampcannot be filled, except by intended misuse.

The above description eXplains the construction and mode of operation,so far as thesupplying of the lamp and filling-can is concerned.

Figs. 5 and 6 are elevated cut sections of the mechanism claimed, inboth my lamp and filling-can, which are here shown as closed before theprocess of filling. Figs. 7 and 8 give a profile View of the same.

Fig. 10 is a face view of the lamp-top H, with the escutcheon M, placedover the tube F, and F ig. 11 with it removed aside, for the purpose offilling the lamp.

"What I claim n the above described nerated, substantally in the manner,and for venton and desre to secure by Letters Patthe purposes aboveSpecified. ent is- The combnaton and arrangement of the WALTER HUNT' 5filling tubes C, and F, valves d and I Wtnesses:

and with the vent-tubes B, and Gr, the CHAS. E. PATTERSON, same beingconstructed, arranged, and op- SHUBAEL E. SWAIN.

